US2009016896A1PendingUtilityA1

Conical washer system for propeller stabilization

Individually held — no corporate assignee on recordPriority: May 25, 2007Filed: May 23, 2008Published: Jan 15, 2009
Est. expiryMay 25, 2027(~0.8 yrs left)· nominal 20-yr term from priority
Inventors:Daryl G. Hill
Y02E10/72F03D 80/00F03D 13/20F03D 1/0658Y02E10/728
53
PatentIndex Score
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Cited by
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Claims

Abstract

A mount and conical spring element for use in a propeller stabilizer system, especially suited to stabilize the propellers of a wind machine or alternatively a wind powered generator, and more particularly a system of conical washers, or “belleville” type washers, positioned at the teeter pinned hub of the propeller, to counter a tilting action of the propeller upon the hub. The propeller stabilizer system includes a propeller assembly with a rotating hub having a plurality of propeller blades attached, and the hub mounted to a propeller shaft. The hub connects to the propeller shaft with a teeter pin, and the propeller assembly is tilt-able on the shaft, about the teeter pin. The propeller shaft also includes a washer mount for receiving a conical washer element, which abuts to both the propeller assembly and the washer mount. The conical washer element dampens the tilt of the propeller assembly upon the propeller shaft, about the teeter pin.

Claims

exact text as granted — not AI-modified
1 . A propeller stabilizer system comprising:
 a propeller assembly including a hub, a plurality of propeller blades attached to the hub, and the hub removably mountable to a propeller shaft;   the propeller shaft terminates at a shaft nose, and includes a washer mount proximate to the shaft nose;   the hub mounted to the propeller shaft with a teeter pin, the teeter pin penetrates the propeller shaft at a right angle through the shaft nose, perpendicular to the propeller shaft;   the propeller assembly tilt-able on the propeller shaft, about the teeter pin;   a conical washer element having an inside surface and an outside surface, the inside surface abutted to the propeller assembly and the outside surface abutted to the washer mount; and   the tilt of the propeller assembly upon the propeller shaft dampened about the teeter pin by the conical washer element.   
   
   
       2 . The propeller stabilizer system of  claim 1 , wherein:
 the conical washer element is received onto the shaft nose.   
   
   
       3 . The propeller stabilizer system of  claim 1 , wherein:
 the conical washer element includes an inner conical washer abutted to an outer conical washer.   
   
   
       4 . The propeller stabilizer system of  claim 1 , wherein:
 the conical washer element includes a multiple of conical washers.   
   
   
       5 . The propeller stabilizer system of  claim 1 , wherein:
 the propeller system is a included in a wind machine.   
   
   
       6 . The propeller stabilizer system of  claim 1 , wherein:
 the conical washer element mechanically opposes the tendency of the propeller assembly to teeter about the teeter pin, under an operational loading of the propeller, as the propeller assembly spins on the propeller shaft.   
   
   
       7 . A propeller stabilizer system comprising:
 propeller assembly includes a hub, a plurality of propeller blades attached to the hub;   the hub mounted to a propeller shaft;   the hub connected to the propeller shaft with a teeter pin;   the teeter pin penetrates the propeller shaft at a right angle, perpendicular to the propeller shaft;   the propeller assembly tilt-able on the shaft, about the teeter pin;   the propeller shaft including a washer mount;   a conical washer element having an inside surface and an outside surface, the inside surface abutted to the propeller assembly and the outside surface abutted to the washer mount; and   the conical washer element for damping the tilt of the propeller assembly upon the propeller shaft, about the teeter pin, the propeller shaft terminates with a shaft nose; and   the conical washer element received onto the shaft nose.   
   
   
       8 . The propeller stabilizer system of  claim 7 , wherein:
 the conical washer element includes an inner conical washer abutted to the wear plate on one side and an outer conical washer on the other side of the inner conical washer.   
   
   
       9 . The propeller stabilizer system of  claim 7 , wherein:
 the conical washer element includes an inner conical washer abutted to an outer conical washer.   
   
   
       10 . The propeller stabilizer system of  claim 7 , wherein:
 the conical washer element includes a multiple of conical washers.   
   
   
       11 . The propeller stabilizer system of  claim 7 , wherein:
 the propeller system is a included in a wind machine.   
   
   
       12 . The propeller stabilizer system of  claim 7 , wherein:
 the conical washer element mechanically opposes the tendency of the propeller assembly to teeter about the teeter pin, under an operational loading of the propeller, as the propeller assembly spins on the propeller shaft.

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